Compatible television system with increased vertical resolution

Details Compatible television system with increased vertical resolution Compatible television system with increased vertical resolution

1981-07-31

1984-01-31

Britton, Howard

Facsimile and static presentation processing

Static presentation processing

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358 16, 358 21R, 358 64, H04N 900

Patent

active

044293275

ABSTRACT:
A television arrangement generates signals from independent pairs of adjacent lines. The signals are separately summed and differenced to produce S and .DELTA. signals. The S signal is representative of the luminance of a scan between the original scans, and the .DELTA. represents vertical resolution. The signals are transmitted to a monitor for generating a high-vertical-resolution picture. Where the display is a color TV receiver, the .DELTA. signal may be buried within the chroma channel by frequency interleaving with the .DELTA. signal occuring only in locations representing high-frequency vertical information. The buried .DELTA. signal is invisible on a conventional receiver. Other independent data may be coupled through the chroma channel by frequency interleaving.

REFERENCES:
patent: 3200195 (1965-08-01), Davies et al.
patent: 3780215 (1973-12-01), Shibata et al.
patent: 4052734 (1977-10-01), Jaeger
patent: 4090214 (1978-05-01), Wright
patent: 4134127 (1979-01-01), Campioni
patent: 4216492 (1980-08-01), Schmalz
patent: 4268861 (1981-05-01), Schreiber et al.
Oliphant et al., "A Digital Telecine Processing Channel", SMPTE Journal, Jul. 1979, vol. 88, No. 7, pp. 474-480.
"Questions on the Orientation of Research in HDTV in the 80's", by Joseph Polonsky as printed in SMPTE Television Technology in the 80's, at pp. 146-150.
"Development Options for Future Television Systems", by Mike Hausdorfer to the SMPTE High-Definition Study Group on May 7, 1981.

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